/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.

    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.

Class
    Foam::pressureSwirlInjector

Description
    Randomly distribute the parcels between the inner and outer cone angle.

    Set inner angle to zero for solid cone.

\*---------------------------------------------------------------------------*/

#ifndef pressureSwirlInjector_H
#define pressureSwirlInjector_H

#include "injectorModel.H"
#include "scalarList.H"


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
/*---------------------------------------------------------------------------*\
                           Class pressureSwirlInjector Declaration
\*---------------------------------------------------------------------------*/

class pressureSwirlInjector
:
    public injectorModel
{

private:

    // Private data

        dictionary pressureSwirlInjectorDict_;

        scalarList coneAngle_;
        scalarList coneInterval_;
        scalarList maxKv_;

        //- Initial spray angle for the parcels
        mutable scalar angle_;

        //- Initial velocity for the parcels
        mutable scalar u_;


    // Private Member Functions

        scalar kv
        (
            const label inj,
            const scalar massFlow,
            const scalar dPressure
        ) const;

        scalar deltaPressureInj(const scalar time, const label inj) const;
        scalar averagePressure(const label inj) const;


public:

    //- Runtime type information
    TypeName("pressureSwirlInjector");


    // Constructors

        //- Construct from components
        pressureSwirlInjector(const dictionary& dict, spray& sm);


    //- Destructor
    virtual ~pressureSwirlInjector();


    // Member Functions

        //- Return the injected droplet diameter
        scalar d0(const label injector, const scalar time) const;

        //- Return the spray angle of the injector
        vector direction
        (
            const label injector,
            const label hole,
            const scalar time,
            const scalar d
        ) const;

        scalar velocity(const label i, const scalar time) const;

        scalar averageVelocity(const label i) const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //
